Brake-shoe.



No. 766,437. PATENTED AUG. 2, 1904., H. FRESH.

BRAKE SHOE.

APPLICATION FILED r1313. 2, 1904.

N0 MODEL.

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NITED STATES Patented August 2, 1904.

PATENT OFFICE.

HENRY FRESH, OF CUMBERLAND, MARYLAND, ASSIG NOR EMERGENCY CAR BRAKECOMPANY, OF CUMBERLAND, MARYLAND.

BRAKE-SHOE.

SPECIFICATION forming part of Letters Patent No. 766,437, dated August2, 1904.

Application filed February 2, 1904. Serial No. 191,704. (No model.)

To (LZZ whom, it may concern.-

Be it known that I, H ENRY Fnnsu, a resident of Cumberland, in thecountyof Adlcgany and State of Maryland, have invented certain new anduseful improvements in Brake-Shoes; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use the same.

1 o The invention relates to brake-shoes for railway-rails such aspatented to me January 13, 1903, such patent being numbered 718,488; andits objects are to provide such shoes with a conveniently detachablesole or frictionplate holder, a durable and eflicient frictionplate, andcombinations of such parts.

The invention consists in the construction hereinafter described andpointed out.

In the accompanying drawings, which form part of this specification,Figure 1 is a side elevation of the improved brake-shoe. Fig. 2 is avertical section passing through the shoe and through the trunnionconnecting its body and friction-plate holder. Fig. 3 is a sideelevation of a friction-plate holder. Fig. 4 is a bottom plan of theshoe-body. Fig. 5 is a partial section of the body. Fig. 6 is a sectionon line 11' n of Fig. 1.

Numeral 1 denotes the main body of the shoe, and 2 the friction-plateholder. The former has a seat or hearing 3 for a trunnion or rounded rib1, connected by a web with a frietion-plate holder or shoe-sole.

Means for supporting the shoe are indicated at 1 in Fig. 1, whichsupport, if desired, may be of substantially the character described inmy patent aforesaid.

The seat or bearing 3 and trunnion 4 are by preference approximatelyhalf as long the main part 1 of the shoe, and said trunnion fills theseat, but tits it sufiiciently loosely to permit its turning in the seator bearing, whereby the holder is automatically rocked by pressureagainst the track-rail to automatically 5 effect a direct bearingthereon of the frictionplate 6, tit-ted in said holder.

The upper faces or shoulders 7 of the holder are downwardly inclinedfrom the web to the outer sides to permit the rocking of the holderunder the bottom on the main part 1 of the shoe.

8 denotes a concealed screw or the like entered in a transverse seatformed partlyin the body 1 and partly in the trunnion at to insure astable connection of the parts. This screw is shorter than the thicknessof the shoe-body and is inserted in a suitable hole, opening at theinside only, whereby its concealment is effectedj 9 denotes a groove inthe bottom of the body 1 to receive a rib 10 on the holder. The grooveextends from the trunnion-seat to the toe or end of the body and the riba little farther, the purpose of this construction being to aid inpreventing relative lateral displacement of either the body or holder.

11 denotes the front end of the holder, beveled substantially asindicated, whereby it is adapted to remove snow, ice, orotherobstructions from a track-rail.

A friction-plate 6, preferably made of compacted felt of wool, isforcedby hydraulic pressure into an undercut seat 13, extending from the rearof the holder to near its forward end.

I have found woolen felt to be specially suited by its durability,non-conductivity, elasticity, and frictional capacity for use inafriction-plate. Preferably such plate will protect below its holder.\Vhen sufficiently worn So to fail as a friction device or as a defenseto the holder, it can be readily removed and re: placed by a freshplate.

Having described my invention, what 1 claim as new, and desire to secureby Letters Patent, is

1. The combination of a shoe-body and a laterally-rocking friction-plateholder.

2. The combination of a shoe-body and a laterallyrocking friction-plateholder, said 9 plate and holder being connected by the trunnion.

3. The combination of a shoe-body and a laterally-rocking friction-plateholder, said holder having upper surfaces inclined upwardly at an angletoward the center of the bottom face of the body.

4:. The combination of the body and the friction-plate holder, one ofthe said parts being provided with a loosely-fitting rib to prevent therelative lateral displacement of either.

5. The combination of the body, the friction-plate, and thefriction-plate holder, said holder having its forward edge beveledclownwardly toward its front to clear a track-rail.

6. The combination of the body, the holder and a single concealedtransverse screw to secure them in operative relation.

7 The combination of the body, the holder, and the friction-plate ofWoolen felt.

8. The combination of the body, the holder, and the friction-plate ofwoolen felt, said felt plate being compacted and pressed into a seat 5in the holder.

9. The combination of the body, the holder,

and the friction-plate of woolen felt, said felt being compacted andpressed into an undercut seat in the holder.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

HENRY FRESH.

Witnesses:

CONRAD G. SMITH, GEORGE A. SIEBERT.

